convex-migration-helper

Backfill data in Convex during a schema migration by leveraging the @convex-dev/migrations component for batched data transformations, ensuring existing records safely conform to the new schema structure without interrupting app availability.

The widen-migrate-narrow workflow is a migration pattern that first expands the schema to support both old and new formats, backfills existing data, and then narrows the schema to enforce the new structure, ensuring safe and progressive data transitions.

Yes, you can run dry runs and monitor status for Convex data migrations using the @convex-dev/migrations component, which provides built-in guardrails to validate breaking schema changes and track batched migration progress across multi-app deployments.

Handle breaking schema changes across multiple Convex apps by applying coordinated multi-app deployment guardrails, ensuring that data transformations and schema updates are synchronized safely to prevent data loss and downtime.

Use guardrails for Convex schema migrations when you are applying breaking changes or executing large-scale backfill operations, as they enforce safe transition patterns and prevent data corruption during multi-app deployments.